Finding the Third Proportional to 308,604 and 480,949.50

Step by Step Solution

1. Step 1: Write the proportion equation
   308,604 : 480,949.50 = 480,949.50 : x
2. Step 2: Convert to fraction form
   308,604/480,949.50 = 480,949.50/x
3. Step 3: Cross multiply
   308,604x = 480,949.50 × 480,949.50
4. Step 4: Simplify right side
   308,604x = 231,312,421,550.25
5. Step 5: Solve for x
   x = 231,312,421,550.25/308,604
6. Step 6: Final answer
   x = 749,544.47